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Soul-wavers were living beings with soul-drawing physiques during their lives. After death, they could not become the God of Death or be reincarnated, so they became soul-wavers...
But the fact is that there are very few people with the physique to attract spirits, not even one in 100 million people. The birth rate is one in 100 million. Therefore, each Soul Crosser has lived for no less than 100 million years...
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